Did you get these Fargo ratings from the BCA entry lists, which have their locked-in Fargo ratings used to place people, or did you get these by looking them up after the tournament?
In any case, you need to compare it not to perfection, but to what it was before Fargo was used. And now that the Fargo league mngmt system is being released, you’ll have a lot fewer mystery people coming from the leagues.
The ratings are where they're rated after the tournament. Of course a good run in a tournament like this will raise your Fargo rating; my point is that the discrepancy between the starting and ending Fargo ratings in Silver, in particular, is higher than a good tournament performance would allow for.
Read some of my past posts and you'll see that I'm a HUGE proponent of Fargo ratings. I'm a data scientist with degrees in Physics and Applied Mathematics. I'm just pointing out that a specific hole in the ratings' efficacy; namely, that a starter rating of 525 (since adjusted, I believe) allows too many unknown players to "rob" the Silver division.
Pax,
Taek